Question

a train is travelling with 10 m/s with a constant acceleration of 1 m/s2 in the direction of velocity for 20 sec. how far will it travels during this time?

Answer 1

The displacement is 400 m
s = ut + (at^2)/2
= 10×20 + 1/2 × 1 × 400
= 200 + 200
= 400